+3V to +5.5V, 1.5Mbps RS-232 Receivers in SOT23-5

Please check latest availability status for a specific part variant.


The MAX3180–MAX3183 are single RS-232 receivers in a SOT23-5 package for space- and cost-constrained applications requiring minimal RS-232 communications. These devices minimize power and heat dissipation by consuming only 0.5µA supply current from a +3.0V to +5.5V supply voltage. They guarantee true RS-232 performance up to a 1.5Mbps data rate.

The MAX3180/MAX3182 feature a three-state TTL/CMOS receiver output that is controlled by an active-low EN logic input. The MAX3181/MAX3183 feature an active-low INVALID output that indicates valid RS-232 signals at the receiver input for applications requiring automatic system wake-up. The MAX3180/MAX3181 receivers have a standard inverting output, while the MAX3182/MAX3183 receivers have a noninverting output.
MAX3180, MAX3181, MAX3182, MAX3183: Pin Configuration MAX3180, MAX3181, MAX3182, MAX3183: Pin Configuration Enlarge+

Key Features

  • Tiny SOT23-5 Package
  • 0.5µA Supply Current
  • 1.5Mbps Guaranteed Data Rate
  • Meet EIA/TIA-232 and V.28/V.24 Specifications Down to VCC = +3.0V
  • Active-Low INVALID Output Indicates Valid RS-232 Signal at Receiver Input (MAX3181/MAX3183)
  • Three-State TTL/CMOS Receiver Output (MAX3180/MAX3182)
  • Noninverting RS-232 Output (MAX3182/MAX3183)


  • Diagnostic Ports
  • Digital Still Cameras
  • Handheld Equipment
  • Network Equipment
  • Set-Top Boxes
  • Telecommunications
Part NumberVSUPPLY
TxRxData Rate
Internal Charge PumpExt. CapsRx Active in ShutdnPackage/PinsBudgetary
mintypSee Notes
$0.81 @1k
MAX3181 1
MAX3182 -
See All RS-232 Line Driver/Receivers (136)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Quality and Environmental Data

Product Reliability Reports: MAX3181.pdf 
Lead-Free Package Tin (Sn) Whisker Reports
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >


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